The ‘rules of 6’ is a handy guide to go by: 6 hours at room temperature, 6 days in the fridge (0 – 4C), and 6 months in the freezer (-18C or lower). If you’re storing in the fridge or freezer, make sure you pop the date on the pouch or bottle or it’s likely to get a bit lost!

They key thing here is to flatten out the bottom of the pouch, so that the whole pouch gets filled. If you don’t do this, it may look like there’s more milk that there actually is. Expanding the pouch also helps it stand upright on a flat surface, which is pretty important too - the last thing you want is for it to topple over and spill your precious breast-milk!